Many wealthy clients own luxury properties and cottages.

And now, they have one more real estate option, reports Bloomberg. That’s because UK-based building company Blue Forest specializes in creating extravagant treehouses for adults, and business is booming.

Most recently, says Bloomberg, the company unveiled its Quiet Treehouse design at the Ideal Homeshow in London. The walls (built using noise-reduction technology) block out external noise and even the appliances are silent. Read more.

Check out the below video, as well as the links about housing and alternative investments:

Housing to stay strong through 2015

How to buy U.S. real estate

What Buffett’s learned from buying real estate

Profit from comic books

4 tips when investing in collectible cars

Cash in on celeb memorabilia